package collection;

import java.util.ArrayList;
import java.util.Collection;

public class CollectionDemo {
    public static void main(String[] args) {



        Collection c1 = new ArrayList();
        c1.add(new Point(1,2));
        c1.add(new Point(3,4));
        c1.add(new Point(5,6));
        c1.add(new Point(7,8));
        c1.add(new Point(9,0));
        c1.add(new Point(1,2));
        System.out.println(c1);



        Point p = new Point(1,2);
        boolean contains = c1.contains(p);
        System.out.println("是否包含："+contains);

        c1.remove(p);
        System.out.println(c1);


        Collection cc = new ArrayList();
        Point pp = new Point(1,2);
        cc.add(pp);
        System.out.println("cc"+cc);
        System.out.println("pp"+pp);


        pp.setX(100);
        System.out.println("cc"+cc);
        System.out.println("pp"+pp);








//        c1.add("aAA");
//        c1.add("SSS");
//        c1.add("DDD");
//        c1.add("FFF");
//        c1.add("GGG");
//        c1.add("JJJ");
//        c1.add("HHH");
//        System.out.println(c1);




    }
}
